Lawinenlagebericht

Moab

Utah Avalanche Center
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Lawinengefahr

  • Hochgebirge
  • Waldgrenze
  • Unterhalb der Waldgrenze
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Veraltet — dieser Lagebericht ist 7 months ago abgelaufen. Du siehst vergangene Verhältnisse, nicht den aktuellen Bericht.

Kernpunkte

There is a MODERATE danger for hard slab avalanches failing on deeply buried persistent weak layers. It is POSSIBLE to trigger avalanches three to five feet deep that will propagate widely. This problem exists on all steep slopes near treeline and above that face NW, N, NE, and E. The danger is most prominent on above treeline slopes that face north to east. You can avoid this problem by sticking to slopes less steep than 30 degrees.

While becoming less likely, it is still POSSIBLE to trigger an old wind-drift above treeline on slopes with a northerly component to their aspect.

Lawinenprobleme

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    3

    Poor snowpack structure remains, and it has proven capable of producing large, destructive human-triggered avalanches. The likelihood of triggering one of these avalanches is decreasing, but the consequences remain severe. Any avalanche failing on the PWL will take out the entire season’s snowpack and will instantly be a season-ender, or worse. The weak layer of concern is right below the Christmas rain crust. In some locations, this crust may temporarily support the weight of a skier or rider, but its ability to bridge underlying weaknesses is highly variable and unreliable. The most dangerous slopes are above treeline and face north and east, especially those that harbor a more robust slab from previous wind loading.

    I will approach this situation by biting off small pieces of avalanche terrain. I’ll be looking for slopes with no steep convexities, terrain traps, thin rocky areas or slab margins, and clean runouts. This problem can be avoided altogether by sticking to slopes less steep than 30 degrees.

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    2

    While becoming less likely, it is still possible to trigger a stiff slab of wind-drifted snow above treeline, especially on slopes with a northerly component to their aspect. Old, hardened drifts are less sensitive to the weight of a rider and may allow you to get further out onto the slab before they break. These slabs will sound hollow and drum-like when you step on them. Any triggered wind drift has the potential to step down to more deeply buried persistent weak layers.

Special Announcement

Geyser Pass Road Conditions: The road was plowed on Friday.

Grooming: LUNA groomed all trails on Wednesday.

We are looking to reschedule our Moab Backcountry 101 Class to February 20, 21 in the hopes that we will have more snow. Click here for information and registration. Moab and Monticello locals can use the discount code MOAB-LOCAL for a 10% discount.

Recent Activity

Yesterday, we spotted a couple of natural wind slab avalanches in Miner's Basin that most likely occurred within the last couple of days.

This is a northeast aspect and the crown is at 10,800 feet. The crown looks to be about a foot deep.

This is a northeast aspect at 11,000 feet. The crown is about 6 inches deep.

On Friday, January 9, a large snowmobile-triggered avalanche occurred on the East Face of Laurel Peak. A full accident report has been published here.

Click here for the complete avalanche database.

Snow and Weather

24 Hour Snow: 0" 72 Hour Snow: 0" Season Total Snow: 36" Depth at Gold Basin: 22"

Winds on Pre-Laurel Peak: NNW 11 G 17 Temp: 24° F

Weather

Under clear skies, it is 24° F in Gold Basin this morning. Winds are light from the northwest. Today, skies will be clear with daytime highs reaching the upper 30s°F at 10,000 feet. Winds will remain light out of the northwest. It's copy and paste weather for the next seven days, warm and sunny conditions persist.

General Conditions

Yesterday, Nate and I toured up Miner’s Basin and found a very thin snowpack below 10,000 feet, barely enough snow to travel on. We found heavily wind-affected snow on open terrain on an east face near treeline. Exposed northerlies were also heavily wind-damaged. We found some decent turns in the protection of the trees, but they were short-lived. Sheltered slopes remain your best bet if you are searching for powder turns.

We were able to get into the starting zone of a large north-facing avalanche path near treeline and stomp around. Previously drifted slopes near treeline seem to be locked up at this point. You can still trigger a lingering wind slab on above treeline slopes that have seen more recent drifting. Slab avalanches failing on weak faceted snow near the ground remain our primary concern.

Snowpack and Weather Data

NEW! Gold Basin webcam storm stake

Gold Basin Storm Stake (10,000')

Gold Basin SNOTEL site (10,000')

SNOTEL site near Geyser Pass Winter Trailhead (9600')

Wind Station on Pre-Laurel Peak (11,400')

NWS forecast for the La Sal Mountains.

General Announcements

This forecast is from the U.S.D.A. Forest Service, which is solely responsible for its content. This forecast describes general avalanche conditions and local variations always occur.

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